<template>
  <div>
    <!-- 顶部面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <!-- 搜索添加区域 -->
      <el-row :gutter="20">
        <el-col :span="10">
          <el-input placeholder="请输入内容" v-model="query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userList" style="width: 100%" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="手机"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="stateChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="deleteUser(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip effect="dark" content="分配角色" placement="top-start" :enterable="false">
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRoles(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页按钮显示 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="pagenum"
        :page-sizes="[1, 2, 3, 5]"
        :page-size="pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 添加用户弹出的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="resetForm">
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!--修改用户弹出的对话框-->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!--分配角色的对话框-->
    <el-dialog title="分配角色" :visible.sync="roleDialogVisible" width="50%" @close="setRoleDialogColsed">
      <div>
        <p>用户名：{{rolesRuleform.username}}</p>
        <p>用户角色:{{rolesRuleform.role_name}}</p>
        <p>
          选择用户角色：<el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="roleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;

      if (regEmail.test(value)) {
        return cb();
      }
      cb(new Error("请输入合法的邮箱地址"));
    };
    // 验证手机的规则
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^(13[0-9]|14[5|7]|15[0|1|2|3|5|6|7|8|9]|18[0|1|2|3|5|6|7|8|9])\d{8}$/;
      if (regMobile.test(value)) {
        return cb();
      }
      cb(new Error("请输入合法的手机号"));
    };
    return {
      //获取到的用户信息
      userList: [],
      // 总数
      total: 0,
      //获取用户列表的参数对象
      query: "",
      // 当前页
      pagenum: 1,
      // 该页显示的最多条数
      pagesize: 3,
      // 控制添加用户的对话框显示与隐藏
      addDialogVisible: false,
      //添加用户的表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: ""
      },
      // 添加用户表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 5,
            message: "用户名长度在 3 到 5 个字符",
            trigger: "blur"
          }
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "密码长度在 6 到 15 个字符",
            trigger: "blur"
          }
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" }
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" }
        ]
      },
      // 控制修改用户对话框弹出/隐藏
      editDialogVisible: false,
      //查询到的用户信息
      editForm: [],
      //修改用户信息表单的验证规则
      editFormRules: {
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" }
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" }
        ]
      },
      //需要被分配角色的用户信息
      rolesRuleform: {},
      //控制分配角色对话框的显示与隐藏
      roleDialogVisible: false,
      //所有角色的数据列表
      rolesList: [],
      //当前已选中的角色id值
      selectedRoleId: ''
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    // 获取用户列表数据
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: {
          query: this.query,
          pagenum: this.pagenum,
          pagesize: this.pagesize
        }
      });
      // console.log(res);
      if (res.meta.status != 200) {
        this.$message.error(res.meta.msg);
        return false;
      }
      this.userList = res.data.users;
      this.total = res.data.total;
    },
    // 监听pagesize(每页显示最多条数)改变的事件
    handleSizeChange(newsize) {
      // console.log(`每页 ${val} 条`);
      this.pagesize = newsize;
      this.getUserList();
    },
    //监听页码改变的事件
    handleCurrentChange(newpage) {
      // console.log(`每页 ${newpage} 条`);
      this.pagenum = newpage;
      this.getUserList();
    },
    // 用户状态改变事件
    async stateChange(userinfo) {
      // console.log(userinfo);
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      );
      // console.log(res);
      if (res.meta.status !== 200) {
        return this.$message.error("更新用户状态失败");
        userinfo.mg_state = !userinfo.mg_state;
      }
      this.$message.success("更新用户状态成功");
    },
    //监听添加用户表单关闭事件 重置添加用户表单
    resetForm() {
      this.$refs.addFormRef.resetFields();
    },
    //添加用户信息填写完成后点击确定按钮，先验证，验证通过再发请求
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) {
          return;
        }
        //可以发起添加用户的网络请求
        const { data: res } = await this.$http.post("users", {
          username: this.addForm.username,
          password: this.addForm.password,
          email: this.addForm.email,
          mobile: this.addForm.mobile
        });
        if (res.meta.status !== 201) {
          return this.$message.error("添加用户失败");
        }
        // 提示添加成功
        this.$message.success("添加用户成功");
        //关闭对话框
        this.addDialogVisible = false;
        // 刷新列表
        this.getUserList();
      });
    },
    //展示编辑用户的对话框
    async showEditDialog(id) {
      // console.log(this);
      const { data: res } = await this.$http.get("users/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("获取用户信息失败");
      }
      this.editForm = res.data;
      this.editDialogVisible = true;
    },
    //监听关闭修改用户对话框的事件 重置表单
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    //监听修改用户信息完成后点击确定按钮，先验证修改的数据，验证通过再发请求
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        // console.log(valid)
        if (!valid) {
          return;
        }
        //可以发起修改用户的网络请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          {
            // id: this.editForm.id,
            email: this.editForm.email,
            mobile: this.editForm.mobile
          }
        );
        if (res.meta.status !== 200) {
          return this.$message.error("更新用户失败");
        }
        // 提示修改成功
        this.$message.success("更新用户成功");
        // 关闭对话框
        this.editDialogVisible = false;
        //重新刷新列表
        this.getUserList();
      });
    },
    //删除用户
    deleteUser(id) {
      this.$confirm("此操作将永久删除该文件, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning"
      })
        .then(async () => {
          //向后台发送删除用户的请求
          const { data: res } = await this.$http.delete("users/" + id);
          if (res.meta.status !== 200) {
            this.$message.error(res.meta.msg);
            return false;
          }
          this.$message.success(res.meta.msg);
          this.getUserList();
        })
        .catch(() => {
          this.$message({
            type: "info",
            message: "已取消删除"
          });
        });
    },
    //展示分配用户角色对话框
    async setRoles(info) {
      this.rolesRuleform = info;
      //展示对话框之前 获取所有角色列表
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg);
      }
      this.rolesList = res.data;
      this.roleDialogVisible = true;
    },
    //点击确定按钮，分配角色
    async saveRoleInfo() {
      if(!this.selectedRoleId){
        return this.$message.error('请选则要分配的角色')
      }
      // console.log(this.selectedRoleId);
      const {data: res} = await this.$http.put(`users/${this.rolesRuleform.id}/role`,{
          rid: this.selectedRoleId
        }
      )
      if(res.meta.status !== 200) {
        return this.$message.error('更新用户角色失败')
      }
      this.$message.success('更新用户角色成功')
      this.getUserList()
      this.roleDialogVisible = false
    },
    //监听分配角色对话框关闭事件
    setRoleDialogColsed(){
      this.selectedRoleId = ''
      this.rolesRuleform = {}
    }
  }
};
</script>

<style lang="less" scoped>
.el-breadcrumb {
  margin-bottom: 15px;
}
.el-card {
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.15) !important;
}
.el-table {
  margin-top: 15px;
  font-size: 12px;
}
</style>